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Applied Optics

Applied Optics


  • Vol. 29, Iss. 28 — Oct. 1, 1990
  • pp: 4077–4080

High numerical aperture planar microlens with swelled structure

M. Oikawa, H. Nemoto, K. Hamanaka, and E. Okuda  »View Author Affiliations

Applied Optics, Vol. 29, Issue 28, pp. 4077-4080 (1990)

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The planar microlens is a 2-D integrated microlens fabricated by the selective ion exchange technique. This paper demonstrates a new class of planar microlens which has a high numerical aperture. The new planar microlens uses a swelling structure and index distribution which comes from replacing ions with different ion volumes. Lens diameters from 10 to 400 μm can be fabricated. A numerical aperture larger than 0.5 is achieved when the lens diameter is smaller than 100 μm. Use of this microlens in light coupling between an LD and a single-mode fiber is also evaluated.

© 1990 Optical Society of America

Original Manuscript: November 17, 1989
Published: October 1, 1990

M. Oikawa, H. Nemoto, K. Hamanaka, and E. Okuda, "High numerical aperture planar microlens with swelled structure," Appl. Opt. 29, 4077-4080 (1990)

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  1. M. Oikawa, K. Iga, “Distributed-Index Planar Microlens,” Appl. Opt. 21, 1052–1056 (1982). [CrossRef] [PubMed]
  2. M. Oikawa, K. Tanaka, T. Yamasaki, “Highly Integrated Distributed-Index Planar Microlens and Its Characteristics,” Proc. Soc. Photo-Opt. Instrum. Eng. 554, 314–318 (1985).
  3. M. Oikawa, E. Okuda, K. Hamanaka, H. Nemoto, “Integrated Planar Microlens and Its Application,” Proc. Soc. Photo-Opt. Instrum. Eng. 898, 3–11 (1988).
  4. K. Iga, S. Misawa, “Distributed-Index Planar Microlens and Stacked Planar Optics: A Review of Progress,” Appl. Opt. 25, 3388–3396 (1986). [CrossRef] [PubMed]
  5. Specification Sheet for Semiconductor Laser TOLD302A-3 Toshiba (1988).
  6. Data Book of Hitachi Opt-Device (Hitachi, 1988), pp. 120–121.

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